Medically reviewed by Brendan Camp, MD A rash, or dermatitis (eczema), on the neck is skin inflammation and irritation. It causes a change in appearance and texture on the front, sides, or back of the ...

Clinical examination revealed numerous erythematous scaling patches and lichenified plaques on the eyelids, face, neck ... diagnosed with nonimmunologic contact urticaria from curcumin.

Usually restricted to areas of skin contact. Contact urticaria, (nonimmunologic) Seconds to minutes Minutes to hours Toxin-mediated. Immediate reaction, with urticaria, erythema, edema ...

However, in rare cases, skin contact with water can trigger an allergic reaction. The scientific name for this rare condition is aquagenic urticaria. Hives — a type of itchy rash — develop ...